Title:
LOOP-SHAPED NETWORK COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP3349113
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce possibility for a frame on a transmission line to be congested or to collide in the case of transferring the frame having data on the transmission line inside a looped LAN.
SOLUTION: Concerning the loop-shaped network communication system for two-way transferring the frames having data while connecting plural nodes N1, N2, N3 and N4 in the shape of loop by a transmission line 16, when the frame prepared by the transmission source node N1, for example, is retransmitted by the respective nodes N2, N3 and N4 and returned to the transmission source node N1 itself, the transmission source node N1 does not transmit the frame again. Thus, the frames transferred inside the transmission line 16 are automatically arranged and possibility for frames on the transmission line to be congested or to collide is reduced.
Inventors:
Akira Uemura
Yasushi Takizawa
Eiji Ikari
Hiroyasu Shibata
Takehiro Shimizu
Hajime Ogawa
Hideaki Yanagisawa
Yasushi Takizawa
Eiji Ikari
Hiroyasu Shibata
Takehiro Shimizu
Hajime Ogawa
Hideaki Yanagisawa
Application Number:
JP8231599A
Publication Date:
November 20, 2002
Filing Date:
March 25, 1999
Export Citation:
Assignee:
Japan Radio Co., Ltd.
Ueda Japan Radio Co., Ltd.
Ueda Japan Radio Co., Ltd.
International Classes:
H04L12/44; H04L12/42; H04L12/70; (IPC1-7): H04L12/44
Domestic Patent References:
| JP5781746A | ||||
| JP5932237A | ||||
| JP10215272A | ||||
| JP98835A | ||||
| JP7226773A | ||||
| JP413333A | ||||
| JP7336389A | ||||
| JP677972A | ||||
| JP63199540A |
Attorney, Agent or Firm:
Takehiro Chiba (1 outside)
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